The SpotSack is a comfortable and stylish way to travel with your pet. Outside materials are made of durable canvas. The inside lining is made of comfortable plaid polyester. Two roomy lined side pockets can be used for treats or handwarmers for yourself! Covered foam removable insert has been added for extra interior comfort and support. Two sizes to choose from. Size X-Small for up to a 5 lbs. and Small up to 10 lbs. Machine Washable and Made in the U.S.A.